Bran-duster



(No Model.)

' J. W. WILSON.

BRAN DUSTER. No. 323,247. Patented Jul 28, 1885.

I \o u ATTORNEYS.

Brookville, in the county of Saline and State arched spider, D, in thecenter of which is JOSEPH XV. \VILSON, OF

ATENT OFFICE.

BROOKVILLE, KANSAS.

BRAN-DUSTER.

SPECIPICATIUN forming part of Letters Patent No. 323.247, dated July 28,1885.

Application filed September 12, 1884.

T0 ctZZ whom, it may concern.-

Be it known that I, J osEPH W. WILsoN, of

of Kansas, have invented new and useful Improvements in Bran-Dusters, ofwhich the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a sectional side elevation of one of my improvedbran-dusters. Fig. 2 is a sectional plan view of the same taken throughthe broken line 00 00, Fig. 1.

The object of this invention is to improve the construction of thebran-dusters for which Letters Patent No. 302,077 were issued to me July15, 1884., in such a manner as to make them more effective in operation.

The invention consists in the peculiar construction and arrangement ofparts, as hereinafter fully described, and pointed out in the claims.

A represents the base-frame of the machine, to the top of which isattached the bottom B of the casing 0.

To the top of the casing O is attached an formed a bearing for the upperend of the shaft E. The lower end of the shaft E revolves in a step, F,in' the center of the crossbars of the base-frame A.

To the shaft E are secured collars Gby setscrews or other suitablemeans, which collars are provided with radial arms H. The outer ends ofthe armsH are forked to enter grooves in the opposite sides'of the wingsor fans I, so that the said wings will be supported by the said arms.

To the outer edges of the wings I are attached brushes J, which, as theshaft E revolves, sweep around the inner'surface of the upright bolt K,attached to the bottom 13, and rub the flour off the bran as the saidbran is passing down through the machine. The

bolt K and the Wings I have a slight upward taper, as shown in Fig. 1.

The bran is fed into the machine through a spout, L, secured in anopening in the center of the top of the casing O, and through which theshaftEpasses. As the bran enters through (No model.) 7

the spout L it is received and distributed, by a conical plate, M,through an opening, in the center of which the shaft E passes, and whichrests upon and is secured to a collar or shoulder, N, attached to orformed upon the said shaft E, so that the said distributing-plate willbe carried around by and with the said shaft in its revolution. Thedistributing-plate M, upon its upper side, is faced with coarsewire-gauze, O, and to the lower side of the top of the casing O isattached a brush, P, so that any lumps of bran that enter the machinewill be broken in pieces between the wire-gauze O and the brush P, andwill thus be prevented from injuring the fine wire-gauzeof the bolt K.As the bran passes down from the outer edge of the distributing-plate Mit is held out against the bolt K by the pressure of air drawn into thecentral part of the bolt by the fans or wings I through the centralopenings in the bottom B and in the bottom of the bran-chamber Q. andthe flour is rubbed from it by the brushes J. The flour passes throughthe bolt K into the flour-chamber R, and is forced out through the spoutS by the mechanism described in Letters Patent N 0. 302,077, or by othersuitable mechanism. The bran escapes through curved slots T in thebottom B, at the inner side of the lower end of the bolt K, into thebran-chamber Q, and is forced thence into the spout U by the scrapers V,attached to the outer ends of arms W, the inner ends of which areattached to a collar, X, secured to.

the shaft E so that the said scrapers will be operated by the revolutionof the said shaft.

The distributing-plate M is adjusted closer to or farther from the brush1? by means of a hand-screw, Y, placed in a screw-hole in a stirrup, Z,attached to the cross-bars of the base-frame A, the forward end of thesaid screw resting against the bottom of the step F, in which the lowerend of the shaft E revolves.

Upon the middle part of the shaft E is placed a sleeve, a, to which arehinged the lower ends of the inclined rods 1), the upper ends of whichare hinged to the inner edges of the fans or wings I.

To the flanged upper end of the sleeve a are attached the lower ends ofrods 0, which are slotted or forked to receive the upper radial arms H,and are attached at their upper ends to an annular plate, d, placed uponthe shaft E. Upon the annular plate d rests the lower end of a spiralspring, 6, the upper end of which rests against the collar N.

To the flanged lower end of the sleeve a are attached the upper ends ofrods f, which are slotted or forked to receive the lower radial arms H,and are attached at their lower ends to an annular plate, placed uponthe hub of the hand-nut h, and held down upon the said nut by the spiralspring i, placed upon the shaft E, with its lower end resting upon thesaid annular plate g, and with its upper end resting against the collarX.

The hand-nut h is screwed upon a screwthread formed upon the shaft E,and is held from working down by a lock-nut, j, also screwed upon thesaid screw thread, and turned up against the said hand-nut h.

ith this construction when the hand-nut h is screwed up the sleeve awill be raised, causing the rods 1) to force the wings I and brushes Joutward, and when the hand-nut h is screwed down the sleeve a will beforced downward by the action of the springs e z, and the wings I andbrushes J will be drawn inward.

The part of the shaft E below the hand-nut h and lock-nut j is madesmaller, so that said nuts can be passed to and from the screwthreadover the said part of the shaft. To the shaft E, below its screw-thread,is attached a pulley, 7a, to receive a belt for driving the machine fromany convenient power.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is I 1. In a. bran-duster of the characterdescribed, the combination, with the top of the bolt K, having afeed-opening and provided with the brushes P on its under surface, ofthe rotating distributing-plate M, having a wiregauze facing contactingwiththe brushes substantially as herein shown and described, wherebylumps of bran will be broken and the material evenly fed to the bolt, asset forth.

2. In a bran-duster, the combination, with the bolt K, provided with thebrushes P on the under surface of its top, and the feed-opening L, ofthe vertically-adjustable shaft E, the distributing-plate M securedthereon, and the adjustable wings I on said shaft below thedistributing-plate, provided with brushes J, substantially as hereinshown and described.

3. In a bran-duster, the combination, with the shaft E, the loose sleevea on said shaft, brush-wings I, and the inclined rods b, connecting thewings to the sleeve, of the plate 9 on the shaft E beneath the frame,rods f. connecting said plate with the sleeve a, and the hand-nut 71,below and in contact with the plate 9, whereby the said hand-nut may beoperated from the outside of the machine to adjust the wings,substantially as herein shown and described.

4. In a bran-duster, the combination, with the shaft E and the fan G HI, having movable wings, of the inclined rods 1), the sleeve a, the rodsand annular plates 0 d andfg, the hand-nut h, and the spiral springs ez, substantially as herein shown and described, whereby the said wingsand their attached brushes will be drawn inward when the said hand-nutis screwed downward, as set forth.

5. In a bran-duster, the combination, with the bolt K, the shaft E, andthe fan G H I, of the casing 0, provided with the bottom B, havingcentral opening and provided with curved slots-T at the inner side ofthe lower end of the said bolt, substantially as herein shown anddescribed, whereby air will be drawn into the central part of the bolt,and the bran will escape at the lower end of the said bolt, as setforth.

JOSEPH WV. WILSON.

Witnesses:

F. Conn, W. H. BIsHor.

